42 mm Filter Cap Cascade Multi Stripe so they are water resistant

so they are water resistant rather than waterproof

(will NOT fit in Eddyline Sky 10

Thanks to its edge-free ergonomic form

Hidden Pocket

side-entry doors and vestibules

42 mm Filter Cap Cascade Multi Stripe so they are water resistantFilter water on the go. The new 42MM Filter Cap threads seamlessly onto all sizes of HydraPak's 42MM thread Seeker water storage bags and Flux flexible bottles morphing them into filtration solutions. The end result being lightweight filtration kits that can either be used to squeeze filtered potable water into other camp bottles and containers or to drink freshly filtered water from a Seeker or Flux. Both deliver fast and easy water treatment around